Nocturna (2007)

This animated film comes from Spain and shares what I have found in other European animated films--the animation is relatively simple but the story is one that keeps you engaged, and they are in many ways more enjoyable than American animated films.
Tim is an orphan who is afraid of the dark.  Each night he escapes to the orphanage rooftop to be comforted by the bright stars of the night sky. However, one night he discovers his favorite star is missing, along with several more. This curious observation opens up a whole new hidden world for Tim who befriends a creature called the Cat Shepherd as they set out on a quest to find out what is happening to the stars.  The adventure leads Tim to confront his fears, and is fun to watch.